Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
ER

Erling Ringgaard — 3 Patents

Thisted, DK: #20 of 95 inventorsTop 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Erling Ringgaard has been granted 3 US patents. The first was granted in 2018 and the most recent in February 2020. Erling Ringgaard ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Erling Ringgaard in Thisted, DK.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10553779 Method of fabricating an acoustic transducer Tomasz Zawada, Ruichao Xu, Michele Guizzetti, Louise Møller Borregaard 2020-02-04
10361356 Piezoelectric energy harvesting Tomasz Zawada, Ruichao Xu, Michele Guizzetti, Louise Møller Borregaard 2019-07-23
10079336 Flexible piezoelectric material, production and use thereof Tomasz Zawada, Karsten Hansen, Konstantin Astafiev 2018-09-18